摘要
为了抑制储能装置多机系统在离网状态下环流的产生,利用平均功率的均分控制,将经过PI控制得到功率外环的输出量,叠加在变流器输出交流电压指令上作为修正。通过Matlab/Simulink软件对离网控制策略进行仿真分析验证。本文研究结果表明,在多机并联系统中加入功率均衡控制,可有效抑制逆变器环流,保证各台储能装置均分负载正常工作。
In order to suppress the circulating current from the energy storage device, using the average power sharing control. get the outer ring of power output by the PI control, Superimposed on the converter output AC voltage command as a correction, By Matlab/Simulink software for off-grid simulation analysis to verify the control strategy. Results of this study indicate that adding power balance control in multi-parallel system, which can effectively pre-inverter circulation to ensure that each storage device load sharing to work.
出处
《电气技术》
2015年第10期34-38,共5页
Electrical Engineering
关键词
储能装置
环流
功率均衡控制
离网
energy storage
circulating current
multiprocessor system
off-grid
